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公开(公告)号:US20240204326A1
公开(公告)日:2024-06-20
申请号:US18592343
申请日:2024-02-29
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor: Yezheng Zhang , Jing Zhu , Zheng Zhong
IPC: H01M50/242 , H01M50/209 , H01M50/249 , H01M50/342
CPC classification number: H01M50/242 , H01M50/209 , H01M50/249 , H01M50/3425 , H01M2200/20 , H01M2220/20
Abstract: A battery module includes a module housing, a safety compartment, electrical assemblies, and explosion-proof structures. The safety compartment, the explosion-proof structures, and at least a part of the electrical assemblies are located outside the module housing and are located on a same side of the module housing. The explosion-proof structure includes a connection end and a pressure relief end that are disposed opposite to each other. The pressure relief end is located in the safety compartment. The pressure relief end of the explosion-proof structure is located in the safety compartment, so that a high-temperature combustible fluid from the pressure relief end flows into the safety compartment, to prevent the high-temperature combustible fluid from flowing to another position of the module housing to burn the electrical assembly. The pressure relief end of the explosion-proof structure is separated from the electrical assembly by using the safety compartment, to avoid a secondary safety accident.
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公开(公告)号:US11967848B2
公开(公告)日:2024-04-23
申请号:US17119351
申请日:2020-12-11
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor: Zheng Zhong , Dong Feng , Jianye Zhang
CPC classification number: H02J7/005 , G01R31/392 , H01M10/425 , H01M10/441 , H01M10/482 , H02J7/0013 , H02J9/06 , H02J9/061 , H01M2010/4271 , H01M2220/10
Abstract: A battery system is provided, including a processing module and a plurality of battery modules. Each of the plurality of battery modules includes a battery management system and an electrochemical cell pack controlled by the battery management system. The processing module is configured to control the electrochemical cell pack to alternately perform a discharging or charging operation. A sum of power of battery modules other than a first battery module in the plurality of battery modules is greater than power required by a target power-supplied object, and the first battery module is any one of the plurality of battery modules. A battery management system is configured to record a target time. The processing module or the battery management system is configured to determine a state of health of the electrochemical cell pack in the first battery module based on the target time.
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公开(公告)号:US20250167324A1
公开(公告)日:2025-05-22
申请号:US19030180
申请日:2025-01-17
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor: Xiaoyang Chen , Kefan Wu , Huajun Cao , Zheng Zhong , Tianhong Hou , Chao Ai , Ping Yu
Abstract: This application provides a resonant sensor, a battery, a battery pack, and an energy storage system. The resonant sensor includes the first substrate, the second substrate, and the third substrate which are all flexible substrates, the resonant sensor may operate in an environment with a flexible feature requirement.
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公开(公告)号:US20230131563A1
公开(公告)日:2023-04-27
申请号:US17974514
申请日:2022-10-26
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor: Rutao Liu , Jing Zhu , Zheng Zhong , Hanqian Zhi
Abstract: A safety detection method for a battery module is provided in this application, which includes: obtaining a plurality of battery temperatures detected by the plurality of temperature sensors at a first moment; determining a standard battery temperature based on the plurality of battery temperatures; obtaining a second battery temperature of a first battery set at a second moment; determining a temperature change rate of first battery set based on a first battery temperature, a second battery temperature, the first moment, and the second moment; and determining that a battery in the first battery set has a liquid leakage risk when a third difference between the first battery temperature detected by the first temperature sensor at the first moment and the standard battery temperature is greater than a first temperature threshold, and the temperature change rate is greater than a temperature change rate threshold.
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公开(公告)号:US11581588B2
公开(公告)日:2023-02-14
申请号:US17358907
申请日:2021-06-25
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor: Zheng Zhong , Xiangmin Ma , Wanxiang Ye
IPC: H01M10/46 , H01M50/584 , H01M50/296 , H01M50/244 , H01M10/0525 , H01M10/42 , H02J7/00
Abstract: The energy storage system includes battery cells, a subrack, a backplane, and a battery management system BMS. The subrack reserves a plurality of battery cell slots, the battery cells are connected to the backplane through the battery cell slots. The backplane is installed in the subrack, a first power terminal is reserved at a position corresponding to the battery cell slot on the backplane, and a plug-in power terminal is formed by a second power terminal of the battery cell together with the first power terminal. A power circuit, a sampling circuit, and an equalizer circuit are integrated into the backplane, and the power circuit, the sampling circuit, and the equalizer circuit are connected after the second power terminal is plugged and docked with the first power terminal. The BMS is connected to the backplane for managing the energy storage system.
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公开(公告)号:US20230282914A1
公开(公告)日:2023-09-07
申请号:US18176977
申请日:2023-03-01
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor: Yezheng Zhang , Jinxing Yang , Jing Zhu , Zheng Zhong
CPC classification number: H01M50/15 , H01M10/425 , H01M10/486 , H01M2010/4271 , H01M2010/4278
Abstract: A battery cover plate is provided, to resolve problems such as a signal transmission structure and sealing performance of the battery cover plate. The battery cover plate includes a plate body, a battery management unit, and a sensor assembly, wherein the plate body has an outer surface and an inner surface facing away from the outer surface. The battery management unit is disposed in the plate body, wherein a transmission structure is provided between the battery management unit and the outer surface, and the battery management unit includes a wireless communication module. The wireless communication module may perform wireless communication with the outside by using the transmission structure. The sensor assembly is connected to the battery management unit, wherein the sensor assembly is disposed in the plate body and extends out of the inner surface.
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